单选题 Advanced mammals such as monkeys, apes and humans have brains ______ from ancestors that took to living in the trees.
A. derived B. progressed C. terminated D.advanced

【正确答案】 A
【答案解析】derive起源，源于。句意：像猴子、猿和人这样的高级哺乳动物都有头脑，他们都来源于喜欢在树上栖息的祖先。B. progress前进，进展；C．terminate使结束；D．advance推进，促进。